QGLShaderProgram ¶

QGLShaderProgram class allows OpenGL shader programs to be linked and used. 更多 …

4.6 版新增。

概要 ¶

函数 ¶

def addShader (shader)
def addShaderFromSourceCode (type, source)
def addShaderFromSourceCode (type, source)
def addShaderFromSourceCode (type, source)
def addShaderFromSourceFile (type, fileName)
def attributeLocation (name)
def attributeLocation (name)
def attributeLocation (name)
def bind ()
def bindAttributeLocation (name, location)
def bindAttributeLocation (name, location)
def bindAttributeLocation (name, location)
def disableAttributeArray (location)
def disableAttributeArray (name)
def enableAttributeArray (location)
def enableAttributeArray (name)
def geometryInputType ()
def geometryOutputType ()
def geometryOutputVertexCount ()
def isLinked ()
def log ()
def maxGeometryOutputVertices ()
def programId ()
def release ()
def removeAllShaders ()
def removeShader (shader)
def setAttributeArray2D (location, values[, stride=0])
def setAttributeArray2D (name, values[, stride=0])
def setAttributeArray3D (location, values[, stride=0])
def setAttributeArray3D (name, values[, stride=0])
def setAttributeArray4D (location, values[, stride=0])
def setAttributeArray4D (name, values[, stride=0])
def setAttributeBuffer (location, type, offset, tupleSize[, stride=0])
def setAttributeBuffer (name, type, offset, tupleSize[, stride=0])
def setAttributeValue (location, value)
def setAttributeValue (location, value)
def setAttributeValue (location, value)
def setAttributeValue (location, value)
def setAttributeValue (location, value)
def setAttributeValue (location, x, y)
def setAttributeValue (location, x, y, z)
def setAttributeValue (location, x, y, z, w)
def setAttributeValue (name, value)
def setAttributeValue (name, value)
def setAttributeValue (name, value)
def setAttributeValue (name, value)
def setAttributeValue (name, value)
def setAttributeValue (name, x, y)
def setAttributeValue (name, x, y, z)
def setAttributeValue (name, x, y, z, w)
def setGeometryInputType (inputType)
def setGeometryOutputType (outputType)
def setGeometryOutputVertexCount (count)
def setUniformValue (location, color)
def setUniformValue (location, point)
def setUniformValue (location, point)
def setUniformValue (location, size)
def setUniformValue (location, size)
def setUniformValue (location, value)
def setUniformValue (location, value)
def setUniformValue (location, value)
def setUniformValue (location, value)
def setUniformValue (location, value)
def setUniformValue (location, value)
def setUniformValue (location, value)
def setUniformValue (location, value)
def setUniformValue (location, value)
def setUniformValue (location, value)
def setUniformValue (location, value)
def setUniformValue (location, value)
def setUniformValue (location, value)
def setUniformValue (location, value)
def setUniformValue (location, value)
def setUniformValue (location, value)
def setUniformValue (location, x, y)
def setUniformValue (location, x, y, z)
def setUniformValue (location, x, y, z, w)
def setUniformValue (name, color)
def setUniformValue (name, point)
def setUniformValue (name, point)
def setUniformValue (name, size)
def setUniformValue (name, size)
def setUniformValue (name, value)
def setUniformValue (name, value)
def setUniformValue (name, value)
def setUniformValue (name, value)
def setUniformValue (name, value)
def setUniformValue (name, value)
def setUniformValue (name, value)
def setUniformValue (name, value)
def setUniformValue (name, value)
def setUniformValue (name, value)
def setUniformValue (name, value)
def setUniformValue (name, value)
def setUniformValue (name, value)
def setUniformValue (name, value)
def setUniformValue (name, value)
def setUniformValue (name, value)
def setUniformValue (name, x, y)
def setUniformValue (name, x, y, z)
def setUniformValue (name, x, y, z, w)
def setUniformValueArray2D (location, values)
def setUniformValueArray2D (name, values)
def setUniformValueArray2x2 (location, values)
def setUniformValueArray2x2 (name, values)
def setUniformValueArray2x3 (location, values)
def setUniformValueArray2x3 (name, values)
def setUniformValueArray2x4 (location, values)
def setUniformValueArray2x4 (name, values)
def setUniformValueArray3D (location, values)
def setUniformValueArray3D (name, values)
def setUniformValueArray3x2 (location, values)
def setUniformValueArray3x2 (name, values)
def setUniformValueArray3x3 (location, values)
def setUniformValueArray3x3 (name, values)
def setUniformValueArray3x4 (location, values)
def setUniformValueArray3x4 (name, values)
def setUniformValueArray4D (location, values)
def setUniformValueArray4D (name, values)
def setUniformValueArray4x2 (location, values)
def setUniformValueArray4x2 (name, values)
def setUniformValueArray4x3 (location, values)
def setUniformValueArray4x3 (name, values)
def setUniformValueArray4x4 (location, values)
def setUniformValueArray4x4 (name, values)
def setUniformValueArrayInt (location, values)
def setUniformValueArrayInt (name, values)
def setUniformValueArrayUint (location, values)
def setUniformValueArrayUint (name, values)
def shaders ()
def uniformLocation (name)
def uniformLocation (name)
def uniformLocation (name)

虚函数 ¶

def link ()

静态函数 ¶

def hasOpenGLShaderPrograms ([context=None])

详细描述 ¶

介绍 ¶

This class supports shader programs written in the OpenGL Shading Language (GLSL) and in the OpenGL/ES Shading Language (GLSL/ES).

QGLShader and QGLShaderProgram shelter the programmer from the details of compiling and linking vertex and fragment shaders.

The following example creates a vertex shader program using the supplied source code . Once compiled and linked, the shader program is activated in the current QGLContext 通过调用 bind() :
shader = QGLShader(QGLShader.Vertex)
shader.compileSourceCode(code)
program = QGLShaderProgram(context)
program.addShader(shader)
program.link()
program.bind()
												

编写便携式着色器 ¶

Shader programs can be difficult to reuse across OpenGL implementations because of varying levels of support for standard vertex attributes and uniform variables. In particular, GLSL/ES lacks all of the standard variables that are present on desktop OpenGL systems: gl_Vertex , gl_Normal , gl_Color , and so on. Desktop OpenGL lacks the variable qualifiers highp , mediump ，和 lowp .

QGLShaderProgram class makes the process of writing portable shaders easier by prefixing all shader programs with the following lines on desktop OpenGL:
#define highp
#define mediump
#define lowp
												
This makes it possible to run most GLSL/ES shader programs on desktop systems. The programmer should restrict themselves to just features that are present in GLSL/ES, and avoid standard variable names that only work on the desktop.

简单着色器范例 ¶

												program.addShaderFromSourceCode(QGLShader.Vertex,
    "attribute highp vec4 vertex\n" \
    "attribute mediump mat4 matrix\n" \
    "void main(void)\n" \
    "{\n" \
    "   gl_Position = matrix * vertex\n" \
    "}")
program.addShaderFromSourceCode(QGLShader.Fragment,
    "uniform mediump vec4 color\n" \
    "void main(void)\n" \
    "{\n" \
    "   gl_FragColor = color\n" \
    "}")
program.link()
program.bind()
vertexLocation = program.attributeLocation("vertex")
matrixLocation = program.attributeLocation("matrix")
colorLocation = program.uniformLocation("color")
												
											

With the above shader program active, we can draw a green triangle as follows:

												triangleVertices = (
    60.0f,  10.0f,  0.0f,
    110.0f, 110.0f, 0.0f,
    10.0f,  110.0f, 0.0f)
color = QColor(0, 255, 0, 255)
pmvMatrix = QMatrix4x4()
pmvMatrix.ortho(self.rect())
program.enableAttributeArray(vertexLocation)
program.setAttributeArray(vertexLocation, triangleVertices, 3)
program.setUniformValue(matrixLocation, pmvMatrix)
program.setUniformValue(colorLocation, color)
glDrawArrays(GL_TRIANGLES, 0, 3)
program.disableAttributeArray(vertexLocation)
												
											

二进制着色器和程序 ¶

Binary shaders may be specified using glShaderBinary() on the return value from shaderId() 。 QGLShader instance containing the binary can then be added to the shader program with addShader() and linked in the usual fashion with link() .

Binary programs may be specified using glProgramBinaryOES() on the return value from programId() . Then the application should call link() , which will notice that the program has already been specified and linked, allowing other operations to be performed on the shader program.

注意

This class has been deprecated in favor of QOpenGLShaderProgram .

另请参阅

QGLShader

class QGLShaderProgram ( [ parent=None ] ) ¶

QGLShaderProgram(context[, parent=None])

param parent

QObject

param context

QGLContext

Constructs a new shader program and attaches it to parent . The program will be invalid until addShader() 被调用。

The shader program will be associated with the current QGLContext .

另请参阅

addShader()

Constructs a new shader program and attaches it to parent . The program will be invalid until addShader() 被调用。

The shader program will be associated with context .

另请参阅

addShader()

PySide2.QtOpenGL.QGLShaderProgram. addShader ( shader ) ¶

参数: shader – QGLShader
返回类型: bool

Adds a compiled shader to this shader program. Returns true if the shader could be added, or false otherwise.

Ownership of the shader object remains with the caller. It will not be deleted when this QGLShaderProgram instance is deleted. This allows the caller to add the same shader to multiple shader programs.

另请参阅

addShaderFromSourceCode() addShaderFromSourceFile() removeShader() link() removeAllShaders()

PySide2.QtOpenGL.QGLShaderProgram. addShaderFromSourceCode ( type , source ) ¶

参数

type – ShaderType
source – QByteArray

返回类型

bool

PySide2.QtOpenGL.QGLShaderProgram. addShaderFromSourceCode ( type , source ) ¶

参数

type – ShaderType
source – str

返回类型

bool

Compiles source as a shader of the specified type and adds it to this shader program. Returns true if compilation was successful, false otherwise. The compilation errors and warnings will be made available via log() .

This function is intended to be a short-cut for quickly adding vertex and fragment shaders to a shader program without creating an instance of QGLShader first.

另请参阅

addShader() addShaderFromSourceFile() removeShader() link() log() removeAllShaders()

PySide2.QtOpenGL.QGLShaderProgram. addShaderFromSourceCode ( type , source ) ¶

参数

type – ShaderType
source – unicode

返回类型

bool

PySide2.QtOpenGL.QGLShaderProgram. addShaderFromSourceFile ( type , fileName ) ¶

参数

type – ShaderType
fileName – unicode

返回类型

bool

Compiles the contents of fileName as a shader of the specified type and adds it to this shader program. Returns true if compilation was successful, false otherwise. The compilation errors and warnings will be made available via log() .

This function is intended to be a short-cut for quickly adding vertex and fragment shaders to a shader program without creating an instance of QGLShader first.

另请参阅

addShader() addShaderFromSourceCode()

PySide2.QtOpenGL.QGLShaderProgram. attributeLocation ( name ) ¶

参数: name – QByteArray
返回类型: int

PySide2.QtOpenGL.QGLShaderProgram. attributeLocation ( name ) ¶

参数: name – unicode
返回类型: int

PySide2.QtOpenGL.QGLShaderProgram. attributeLocation ( name ) ¶

参数: name – str
返回类型: int

Returns the location of the attribute name within this shader program’s parameter list. Returns -1 if name is not a valid attribute for this shader program.

另请参阅

uniformLocation() bindAttributeLocation()

PySide2.QtOpenGL.QGLShaderProgram. bind ( ) ¶

返回类型: bool

Binds this shader program to the active QGLContext and makes it the current shader program. Any previously bound shader program is released. This is equivalent to calling glUseProgram() on programId() 。返回 true if the program was successfully bound; false otherwise. If the shader program has not yet been linked, or it needs to be re-linked, this function will call link() .

另请参阅

link() release()

PySide2.QtOpenGL.QGLShaderProgram. bindAttributeLocation ( name , location ) ¶

参数

name – QByteArray
location – int

PySide2.QtOpenGL.QGLShaderProgram. bindAttributeLocation ( name , location ) ¶

参数

name – unicode
location – int

PySide2.QtOpenGL.QGLShaderProgram. bindAttributeLocation ( name , location ) ¶

参数

name – str
location – int

Binds the attribute name 到指定 location . This function can be called before or after the program has been linked. Any attributes that have not been explicitly bound when the program is linked will be assigned locations automatically.

When this function is called after the program has been linked, the program will need to be relinked for the change to take effect.

另请参阅

attributeLocation()

PySide2.QtOpenGL.QGLShaderProgram. disableAttributeArray ( name ) ¶

参数: name – str

这是重载函数。

Disables the vertex array called name in this shader program that was enabled by a previous call to enableAttributeArray() .

另请参阅

enableAttributeArray() setAttributeArray() setAttributeValue() setUniformValue()

PySide2.QtOpenGL.QGLShaderProgram. disableAttributeArray ( location ) ¶

参数: location – int

Disables the vertex array at location in this shader program that was enabled by a previous call to enableAttributeArray() .

另请参阅

enableAttributeArray() setAttributeArray() setAttributeValue() setUniformValue()

PySide2.QtOpenGL.QGLShaderProgram. enableAttributeArray ( name ) ¶

参数: name – str

这是重载函数。

Enables the vertex array called name in this shader program so that the value set by setAttributeArray() on name will be used by the shader program.

另请参阅

disableAttributeArray() setAttributeArray() setAttributeValue() setUniformValue()

PySide2.QtOpenGL.QGLShaderProgram. enableAttributeArray ( location ) ¶

参数: location – int

Enables the vertex array at location in this shader program so that the value set by setAttributeArray() on location will be used by the shader program.

另请参阅

disableAttributeArray() setAttributeArray() setAttributeValue() setUniformValue()

PySide2.QtOpenGL.QGLShaderProgram. geometryInputType ( ) ¶

返回类型: GLenum

Returns the geometry shader input type, if active.

This parameter takes effect the next time the program is linked.

另请参阅

setGeometryInputType()

PySide2.QtOpenGL.QGLShaderProgram. geometryOutputType ( ) ¶

返回类型: GLenum

Returns the geometry shader output type, if active.

This parameter takes effect the next time the program is linked.

另请参阅

setGeometryOutputType()

PySide2.QtOpenGL.QGLShaderProgram. geometryOutputVertexCount ( ) ¶

返回类型: int

Returns the maximum number of vertices the current geometry shader program will produce, if active.

This parameter takes effect the ntext time the program is linked.

另请参阅

setGeometryOutputVertexCount()

static PySide2.QtOpenGL.QGLShaderProgram. hasOpenGLShaderPrograms ( [ context=None ] ) ¶

参数: context – QGLContext
返回类型: bool

返回 true if shader programs written in the OpenGL Shading Language (GLSL) are supported on this system; false otherwise.

context is used to resolve the GLSL extensions. If context is None ，那么 currentContext() 被使用。

PySide2.QtOpenGL.QGLShaderProgram. isLinked ( ) ¶

返回类型: bool

返回 true if this shader program has been linked; false otherwise.

另请参阅

link()

PySide2.QtOpenGL.QGLShaderProgram. link ( ) ¶

返回类型: bool

Links together the shaders that were added to this program with addShader() 。返回 true if the link was successful or false otherwise. If the link failed, the error messages can be retrieved with log() .

Subclasses can override this function to initialize attributes and uniform variables for use in specific shader programs.

If the shader program was already linked, calling this function again will force it to be re-linked.

另请参阅

addShader() log()

PySide2.QtOpenGL.QGLShaderProgram. log ( ) ¶

返回类型: unicode

Returns the errors and warnings that occurred during the last link() or addShader() with explicitly specified source code.

另请参阅

link()

PySide2.QtOpenGL.QGLShaderProgram. maxGeometryOutputVertices ( ) ¶

返回类型: int

Returns the hardware limit for how many vertices a geometry shader can output.

另请参阅

setGeometryOutputVertexCount()

PySide2.QtOpenGL.QGLShaderProgram. programId ( ) ¶

返回类型: GLuint

Returns the OpenGL identifier associated with this shader program.

另请参阅

shaderId()

PySide2.QtOpenGL.QGLShaderProgram. release ( ) ¶: Releases the active shader program from the current QGLContext . This is equivalent to calling glUseProgram(0) .

另请参阅

bind()

PySide2.QtOpenGL.QGLShaderProgram. removeAllShaders ( ) ¶: Removes all of the shaders that were added to this program previously. The QGLShader objects for the shaders will not be deleted if they were constructed externally. QGLShader objects that are constructed internally by QGLShaderProgram will be deleted.

另请参阅

addShader() removeShader()

PySide2.QtOpenGL.QGLShaderProgram. removeShader ( shader ) ¶

参数: shader – QGLShader

移除 shader from this shader program. The object is not deleted.

The shader program must be valid in the current QGLContext .

另请参阅

addShader() link() removeAllShaders()

PySide2.QtOpenGL.QGLShaderProgram. setAttributeArray2D ( name , values [ , stride=0 ] ) ¶

参数

name – str
values – QVector2D
stride – int

这是重载函数。

Sets an array of 2D vertex values on the attribute called name in this shader program. The stride indicates the number of bytes between vertices. A default stride value of zero indicates that the vertices are densely packed in values .

The array will become active when enableAttributeArray() is called on name . Otherwise the value specified with setAttributeValue() for name 会被使用。

另请参阅

setAttributeValue() setUniformValue() enableAttributeArray() disableAttributeArray()

PySide2.QtOpenGL.QGLShaderProgram. setAttributeArray2D ( location , values [ , stride=0 ] ) ¶

参数

location – int
values – QVector2D
stride – int

Sets an array of 2D vertex values on the attribute at location in this shader program. The stride indicates the number of bytes between vertices. A default stride value of zero indicates that the vertices are densely packed in values .

The array will become active when enableAttributeArray() is called on the location . Otherwise the value specified with setAttributeValue() for location 会被使用。

另请参阅

setAttributeValue() setUniformValue() enableAttributeArray() disableAttributeArray()

PySide2.QtOpenGL.QGLShaderProgram. setAttributeArray3D ( name , values [ , stride=0 ] ) ¶

参数

name – str
values – QVector3D
stride – int

这是重载函数。

Sets an array of 3D vertex values on the attribute called name in this shader program. The stride indicates the number of bytes between vertices. A default stride value of zero indicates that the vertices are densely packed in values .

The array will become active when enableAttributeArray() is called on name . Otherwise the value specified with setAttributeValue() for name 会被使用。

另请参阅

setAttributeValue() setUniformValue() enableAttributeArray() disableAttributeArray()

PySide2.QtOpenGL.QGLShaderProgram. setAttributeArray3D ( location , values [ , stride=0 ] ) ¶

参数

location – int
values – QVector3D
stride – int

Sets an array of 3D vertex values on the attribute at location in this shader program. The stride indicates the number of bytes between vertices. A default stride value of zero indicates that the vertices are densely packed in values .

The array will become active when enableAttributeArray() is called on the location . Otherwise the value specified with setAttributeValue() for location 会被使用。

另请参阅

setAttributeValue() setUniformValue() enableAttributeArray() disableAttributeArray()

PySide2.QtOpenGL.QGLShaderProgram. setAttributeArray4D ( location , values [ , stride=0 ] ) ¶

参数

location – int
values – QVector4D
stride – int

Sets an array of 4D vertex values on the attribute at location in this shader program. The stride indicates the number of bytes between vertices. A default stride value of zero indicates that the vertices are densely packed in values .

The array will become active when enableAttributeArray() is called on the location . Otherwise the value specified with setAttributeValue() for location 会被使用。

另请参阅

setAttributeValue() setUniformValue() enableAttributeArray() disableAttributeArray()

PySide2.QtOpenGL.QGLShaderProgram. setAttributeArray4D ( name , values [ , stride=0 ] ) ¶

参数

name – str
values – QVector4D
stride – int

这是重载函数。

Sets an array of 4D vertex values on the attribute called name in this shader program. The stride indicates the number of bytes between vertices. A default stride value of zero indicates that the vertices are densely packed in values .

The array will become active when enableAttributeArray() is called on name . Otherwise the value specified with setAttributeValue() for name 会被使用。

另请参阅

setAttributeValue() setUniformValue() enableAttributeArray() disableAttributeArray()

PySide2.QtOpenGL.QGLShaderProgram. setAttributeBuffer ( name , type , offset , tupleSize [ , stride=0 ] ) ¶

参数

name – str
type – GLenum
offset – int
tupleSize – int
stride – int

这是重载函数。

Sets an array of vertex values on the attribute called name in this shader program, starting at a specific offset in the currently bound vertex buffer. The stride indicates the number of bytes between vertices. A default stride value of zero indicates that the vertices are densely packed in the value array.

type indicates the type of elements in the vertex value array, usually GL_FLOAT , GL_UNSIGNED_BYTE , etc. The tupleSize indicates the number of components per vertex: 1, 2, 3, or 4.

The array will become active when enableAttributeArray() is called on the name . Otherwise the value specified with setAttributeValue() for name 会被使用。

另请参阅

setAttributeArray()

PySide2.QtOpenGL.QGLShaderProgram. setAttributeBuffer ( location , type , offset , tupleSize [ , stride=0 ] ) ¶

参数

location – int
type – GLenum
offset – int
tupleSize – int
stride – int

Sets an array of vertex values on the attribute at location in this shader program, starting at a specific offset in the currently bound vertex buffer. The stride indicates the number of bytes between vertices. A default stride value of zero indicates that the vertices are densely packed in the value array.

type indicates the type of elements in the vertex value array, usually GL_FLOAT , GL_UNSIGNED_BYTE , etc. The tupleSize indicates the number of components per vertex: 1, 2, 3, or 4.

The array will become active when enableAttributeArray() is called on the location . Otherwise the value specified with setAttributeValue() for location 会被使用。

注意

Normalization will be enabled. If this is not desired, call glVertexAttribPointer directly though QGLFunctions .

另请参阅

setAttributeArray()

PySide2.QtOpenGL.QGLShaderProgram. setAttributeValue ( location , value ) ¶

参数

location – int
value – QVector4D

PySide2.QtOpenGL.QGLShaderProgram. setAttributeValue ( location , value ) ¶

参数

location – int
value – QVector3D

PySide2.QtOpenGL.QGLShaderProgram. setAttributeValue ( location , value ) ¶

参数

location – int
value – QVector2D

PySide2.QtOpenGL.QGLShaderProgram. setAttributeValue ( location , value ) ¶

参数

location – int
value – QColor

PySide2.QtOpenGL.QGLShaderProgram. setAttributeValue ( location , x , y , z , w ) ¶

参数

location – int
x – GLfloat
y – GLfloat
z – GLfloat
w – GLfloat

Sets the attribute at location in the current context to the 4D vector ( x , y , z , w ).

另请参阅

setUniformValue()

PySide2.QtOpenGL.QGLShaderProgram. setAttributeValue ( location , x , y , z ) ¶

参数

location – int
x – GLfloat
y – GLfloat
z – GLfloat

Sets the attribute at location in the current context to the 3D vector ( x , y , z ).

另请参阅

setUniformValue()

PySide2.QtOpenGL.QGLShaderProgram. setAttributeValue ( location , x , y ) ¶

参数

location – int
x – GLfloat
y – GLfloat

Sets the attribute at location in the current context to the 2D vector ( x , y ).

另请参阅

setUniformValue()

PySide2.QtOpenGL.QGLShaderProgram. setAttributeValue ( location , value ) ¶

参数

location – int
value – GLfloat

Sets the attribute at location in the current context to value .

另请参阅

setUniformValue()

PySide2.QtOpenGL.QGLShaderProgram. setAttributeValue ( name , value ) ¶

参数

name – str
value – QVector3D

PySide2.QtOpenGL.QGLShaderProgram. setAttributeValue ( name , value ) ¶

参数

name – str
value – QVector4D

PySide2.QtOpenGL.QGLShaderProgram. setAttributeValue ( name , value ) ¶

参数

name – str
value – GLfloat

这是重载函数。

Sets the attribute called name in the current context to value .

另请参阅

setUniformValue()

PySide2.QtOpenGL.QGLShaderProgram. setAttributeValue ( name , x , y ) ¶

参数

name – str
x – GLfloat
y – GLfloat

这是重载函数。

Sets the attribute called name in the current context to the 2D vector ( x , y ).

另请参阅

setUniformValue()

PySide2.QtOpenGL.QGLShaderProgram. setAttributeValue ( name , x , y , z ) ¶

参数

name – str
x – GLfloat
y – GLfloat
z – GLfloat

这是重载函数。

Sets the attribute called name in the current context to the 3D vector ( x , y , z ).

另请参阅

setUniformValue()

PySide2.QtOpenGL.QGLShaderProgram. setAttributeValue ( name , value ) ¶

参数

name – str
value – QColor

PySide2.QtOpenGL.QGLShaderProgram. setAttributeValue ( name , value ) ¶

参数

name – str
value – QVector2D

PySide2.QtOpenGL.QGLShaderProgram. setAttributeValue ( name , x , y , z , w ) ¶

参数

name – str
x – GLfloat
y – GLfloat
z – GLfloat
w – GLfloat

这是重载函数。

Sets the attribute called name in the current context to the 4D vector ( x , y , z , w ).

另请参阅

setUniformValue()

PySide2.QtOpenGL.QGLShaderProgram. setGeometryInputType ( inputType ) ¶

参数: inputType – GLenum

Sets the input type from inputType .

This parameter takes effect the next time the program is linked.

另请参阅

geometryInputType()

PySide2.QtOpenGL.QGLShaderProgram. setGeometryOutputType ( outputType ) ¶

参数: outputType – GLenum

Sets the output type from the geometry shader, if active, to outputType .

This parameter takes effect the next time the program is linked.

另请参阅

geometryOutputType()

PySide2.QtOpenGL.QGLShaderProgram. setGeometryOutputVertexCount ( count ) ¶

参数: count – int

Sets the maximum number of vertices the current geometry shader program will produce, if active, to count .

This parameter takes effect the next time the program is linked.

另请参阅

geometryOutputVertexCount()

PySide2.QtOpenGL.QGLShaderProgram. setUniformValue ( location , value ) ¶

参数

location – int
value – GLfloat

Sets the uniform variable at location in the current context to value .

另请参阅

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QGLShaderProgram ¶

概要 ¶

函数 ¶

虚函数 ¶

静态函数 ¶

详细描述 ¶

介绍 ¶

编写便携式着色器 ¶

简单着色器范例 ¶

二进制着色器和程序 ¶